想要讓自己的托福成績更加有競爭力，我們要讓自己的聽力部分和閱讀部分盡量滿分。很多童鞋覺得托福聽力語速很快，篇章很長，聽力內容又涵蓋了很多*，所以很難全部聽清楚。所以我想分享一下我提高英語聽力并且達到托福聽力滿分的一些心得。托福聽力怎樣快速提高呢？我覺得英語聽力水平 托福聽力技巧同樣重要。
首先介紹一下托福聽力。托福聽力一般是兩到三個部分，每個部分由一段對話和兩個講座組成，每個部分音頻大約是20分鐘，答題時間是10分鐘。如果遇到加試，考生將多聽一個部分的20分鐘錄音，內容也是一段對話和兩個講座。聽力第三部分加試一般會從現成的加試題庫里選取，文末會提供托福聽力經典加試題資料。
英語聽力水平不難提高。但是我們需要每天花一點點時間，并且堅持盡可能久的時間多聽。“泛聽 精聽”是我提高英語聽力的方法，我覺得效果很好。泛聽就是戴上耳機聽各種英語材料，如VOA，新概念英語三或者四，BBC，托福聽力原題或者你能找到的任何常速的英語音頻。在聽的過程中盡量集中精力，能聽懂多少算多少，但是不用花其他時間深究，一直往下聽就行。常速是因為托福聽力比較快，所以只有在考前多聽常速英語音頻，才能讓自己習慣這個語速。我有好一陣時間，每天晚上躺在床上之后，就戴上耳機播放新概念英語3，一直聽到睡著。提高英語聽力，這個方法真的超級有用！
當然，精聽也非常重要。我們可以找來托福聽力原題（包括音頻和原文），一句一句地聽。每一句都播放幾遍，直到自己聽懂整句話的意思。如果還是不懂的話，就用聽力原文進行對比，看看自己有沒有聽錯或者聽漏什么內容。精聽比較耗費時間，聽一篇要半個小時甚至更久。每天精聽一兩個passage就可以了，這種方法真的可以快速提高英語聽力水平。
除此之外，跟讀也是一個提高聽力的有用方式，對照原文一句一句跟讀托福聽力音頻可以讓我們對“英語聲音”記得更快，更有效率。
當我們擁有足夠的英語聽力水平，托福聽力就不會使我們抓狂。但是我們依然很難拿到滿分，總是會錯那么一兩道題。而掌握托福聽力技巧可以幫助我們更好地答題，提升正確率，甚至在英語聽力水平有限的情況下也答對題目！這種托福聽力技巧就是掌握托福聽力的內容規律和出題規律。
首先是聽力內容的規律性。我們以一篇托福聽力原題為例子進行介紹。
大家聽懂了多少？如果你覺得好多內容都沒聽懂，那么還要繼續努力。不過也不用太緊張，因為這一篇真題的難度還是比較大的。下面我們來看看聽力原文。
【真題Cryogenian period】
Listen to part of a lecture in a geology class.
So continuing with ice ages, we've looked at the Pleistocene Ice Age up through the so-called Little Ice Age in Europe, but today I'd like to talk about a controversial hypothesis that Earth went through tremendous ice ages before all these others between approximately 600 and 700 million years ago during a geologic period that's known as the Cryogenian.（主題：一個冰川紀）
Cryo is from the Greek and means cold. The name comes from the glacial deposits going back to this period. They’re found all around the world, which indicates that glacier spread across all the continents at that time even near the equator.
And this is the premise of a hypothesis commonly called Snowball Earth（大雪球假說）.The name pretty much described the condition, that it is just proposed existed than with not only the continents, but also the oceans entirely covered with thick sheets of ice.（冰川紀是大雪球假說的前提）
But how could the Snowball Earth climate have come about? In the other ice ages, we’ve looked at, up to 30% of the Earth's surface was covered in ice. But here we're talking way more than that.（后文講大雪球氣候是怎么來的）
Okay. This gives us a chance for review. When radiation from the sun reaches our planet, some of it is absorbed and some of it reflected back into space, right? And different surfaces on Earth reflect solar radiation differently. They don't have the same surface albedo. Surface albedo is a measure that tells us how much solar radiation gets reflected back into space. Ocean water, for example, tends to absorb radiation. Its surface albedo is low. So that has a warming effect on the planet. But ice and snow reflect a lot of solar radiation. They have a higher albedo. It's like how wearing white clothing can help you stay cooler in a hot day than wearing black clothing. Similarly, ice and snow as well as being very cold themselves have an additional cooling effect because they keep solar radiation from being absorbed.（復習氣候持續變冷的原理）
Now once this process of reflection and cooling gets started, it can end up being self-perpetuating.The cooling increases the ice cover, which increases the surface albedo, so the climate gets even colder, causing more ice to form and so on. This is called the ice albedo feedback.Normally the process is kept in check by the ocean's absorption of solar radiation, but according to the Snowball Earth hypothesis, the feedback loop didn't stop. And so ice and snow were covering more and more land, cooling Earth's surface more and more quickly, and got to the point where even the oceans were covered in ice.（持續變冷循環）
Now the thought of Earth as a giant snowball. I have to admit it has some dramatic appeal. And a number of geologists have come on board with it in fact, because there's certainly evidence of extreme glaciation during the Cryogenian period. （后面要講極寒的證據evidence）
For example, in Oman, now Oman's in the Middle East, right? So a hot climate today. Well, sedimentary rocks there provide clear evidence of glaciers in the Cryogenian period. But a new research study looked at the sedimentary rocks more closely. （一個新研究）The technique they used. It’s useful to know this, because we will come across it again. What they look at is a measure called a chemical index of alteration. The chemical index of alteration is a gauge of chemical weathering of rock, which means the chemical changes that occurred in rock due to environmental conditions. A high rate of chemical weathering indicates a warm and humid environment. Well, a low rate of chemical weathering is consistent with cool and dry conditions. So in this rock in Oman, the chemical index of alteration suggests that the climate during the Cryogenian wasn't consistent. There's definitely evidence of periods with low rates of chemical weathering and therefore cold conditions. But these alternate with intervals of high chemical weathering, which represent times of warmer weather, which means that there were periods when that deep-freeze broke. （證據發現極寒期不持續，有變熱的時期）But how? If the Earth was completely frozen for a long period of time, Idoubt warmer periods could have happened. The incoming solar radiation would have been reflected back, right? So the warmer periods indicate that at least some portions of the ocean weren't frozen over.（證明大雪球假說可能有點問題，一些海面沒有被冰凍）
